diff --git a/nix/pgScript.nix b/nix/pgScript.nix
index 07159ab..10788d1 100644
--- a/nix/pgScript.nix
+++ b/nix/pgScript.nix
@@ -20,6 +20,8 @@ let
 
     pg_ctl start -o "$default_options" -o "${options}"
 
+    bzip2 -dk test/samples/all_movies.csv.bz2
+
     cp ${../test/samples/all_movies.csv} $tmpdir/all_movies.csv
     cp ${../test/samples/all_movies.csv.bz2} $tmpdir/all_movies.csv.bz2